Nrog rau kev nthuav dav ntxiv ntawm cov nplai ntawm aquaculture thiab kev tsim tawm sai sai, cov teeb meem ecological thiab ib puag ncig tau maj mam tshwm sim. Cov ntses seem, cov khib nyiab, ntses thiab cw lub cev tso tawm ua rau hauv aquaculture ua rau aquaculture los tsim nws tus kheej cov pa phem, tshwj xeeb tshaj yog nrog rau kev loj hlob ntawm intensive cultivation txoj kev, kev yug me nyuam ceev thiab tus nqi ntawm cov bait loj hlob, tus nqi ntawm residual bait thiab ntses lub cev. excretion Tus nqi ntawm cov zaub mov kuj nce ntxiv, thiab cov pa phem ntawm aquaculture tau dhau los ua hnyav dua. Hauv kev ua liaj ua teb ntses hauv hiav txwv, nws cov metabolites yog 20 feem pua -35 feem pua ntawm cov bait tus nqi, thiab cov seem seem yog 10-40 feem pua ntawm cov bait tus nqi, uas yog ncaj qha tawm mus rau hauv lub cev dej, yog li txo cov yaj. oxygen nyob rau hauv dej, ammonia nitrogen thiab nitrous acid Qhov nce ntawm ntsev nitrogen thiab nitrate nitrogen, tsub zuj zuj ntawm ntau tus kab mob, cov kab mob thiab lwm yam kab mob nyob rau hauv dej, ua rau lub cev dej tus kheej-purification muaj peev xwm txo, ua rau eutrophication. ntawm lub cev dej los yog deterioration ntawm dej zoo. Raws li cov lus ceeb toom, kwv yees li 50 feem pua ntawm cov pas dej hauv cov chaw yug me nyuam loj hauv tsev yog cov pa phem heev, 30 feem pua ntawm cov pas dej muaj kuab paug tsawg, thiab 20 feem pua ntawm cov pas dej me me. Nyob rau tib lub sijhawm, qhov tso tawm loj heev ntawm cov dej tsis kho dej aquaculture pollutes cov ntug dej hiav txwv. Cov dej tsis huv nyob ze ntawm ntug dej tau muab tso rau hauv lossis coj mus rau hauv lub pas dej ntses, ua rau muaj kev ua qias tuaj rau tus kheej thiab rov ua rau muaj kev puas tsuaj rau kev lag luam aquaculture.
Aquaculture kuab paug tshwm sim los ntawm high-yield aquaculture yuav tshaj lub peev xwm ntawm tus kheej purification ntawm lub roob ris nws tus kheej, uas yuav cuam tshuam loj rau kev txhim kho ntawm cov khoom, zoo thiab efficiency ntawm crab pas dej ua ke nyob rau hauv lub neej yav tom ntej.
Txoj kev MBBR tau qhia nyob rau xyoo 1980s thiab tau siv sai sai hauv Tebchaws Europe. Nws tau absorbed qhov zoo ntawm ob qho tib si cov tsoos activated sludge txoj kev thiab cov tshuaj lom neeg oxidation txoj kev los ua ib tug tshiab thiab npaum txheej txheem kev kho mob. Lub hauv paus tseem ceeb yog kom ncaj qha ntxiv cov khoom tso tawm nrog lub ntiajteb txawj nqus ze ntawm cov dej rau hauv lub tank aeration raws li cov neeg nqa khoom nquag ntawm cov kab mob, tso siab rau lub aeration hauv lub tank aeration thiab nqa cov nyhuv ntawm cov dej ntws mus rau hauv lub xeev fluidized. Thaum cov kab mob txuas nrog rau cov cab kuj, Cov neeg nqa khoom ntab txav tau yooj yim nyob rau hauv lub reactor nrog lub swirling thiab overturning nyhuv ntawm cov kua sib tov, thiaj li ua tiav lub hom phiaj ntawm kev kho dej phwj tuaj. Raws li cov txheej txheem uas muab cov txheej txheem tshem tawm cov sludge thiab cov txheej txheem biofilm txuas nrog, MBBR txoj kev muaj qhov zoo ntawm ob qho tib si: nws nyob hauv ib cheeb tsam me me, thiab nws tsuas yog xav tau 20 feem pua ntawm qhov ntim ntawm lub tank oxidation zoo tib yam nyob rau hauv tib lub load. ; Cov kab mob sib kis tau txuas nrog cov cab kuj thiab ntws nrog dej, yog li tsis tas yuav tsum tau ua kom cov sludge backflow los yog circulating backwashing; cov kab mob cab mus txuas ntxiv kom tsis txhob txhaws; siab organic load thiab muaj zog cuam tshuam load kuj, yog li cov effluent zoo yog ruaj khov; lub taub hau poob yog me me, kev siv hluav taws xob tsawg, kev ua haujlwm yooj yim, kev ua haujlwm yooj yim thiab kev tswj hwm; nyob rau tib lub sij hawm haum rau renovation tej yaam num.